Low port power, Measurement uncertainties – Atec Anritsu-VNA Series User Manual
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Low Port Power
3652A Calibration Kit (K-Connector)
Corrected System Performance and Uncertainties:
MS202x/3xC Models with 12-term SOLT calibration including
isolation using 3652A Calibration Kit
Frequency Range (GHz)
Directivity (dB) *
≤ 5
> 34
≤ 15
> 34
≤ 20
> 34
Frequency Range (GHz)
Typical Low Port Power (dBm)
≤ 3
–25
≤ 6
–25
≤ 20
–25
Measurement Uncertainties
The following graphs provide measurement uncertainty at 23 ºC ± 5 ºC for the above indicated connector type and calibration.
Errors are worse-case contributions of residual directivity, source match, frequency response, network analyzer dynamic
range, and connector repeatability. Transmission tracking, crosstalk, and physical load termination were added for two-port
measurements. Isolation calibration and an IF Bandwidth of 10 Hz are used.
0.1
1
10
100
S11 Magnitude
S11 Phase
S21 Magnitude
S21 Phase
0.1
1
10
-40
-35
-30
-25
-20
-15
-10
-5
0
0.1
10
100
-40
-35
-30
-25
-20
-15
-10
-5
0
-80
-70
-60
-50
-40
-30
-20
-10
0
0.01
0.1
1
1
10
-80
-70
-60
-50
-40
-30
-20
-10
0
Uncertainty 5 kHz to 20 MHz
Uncertainty 20 MHz to 3 GHz
Uncertainty 3 GHz to 6 GHz
Uncertainty 6 GHz to 20 GHz
Uncertainty 5 kHz to 20 MHz
Uncertainty 20 MHz to 3 GHz
Uncertainty 3 GHz to 6 GHz
Uncertainty 6 GHz to 20 GHz
Uncertainty 5 kHz to 20 MHz
Uncertainty 20 MHz to 3 GHz
Uncertainty 3 GHz to 6 GHz
Uncertainty 6 GHz to 20 GHz
Uncertainty 5 kHz to 20 MHz
Uncertainty 20 MHz to 3 GHz
Uncertainty 3 GHz to 6 GHz
Uncertainty 6 GHz to 20 GHz
* Directivity spec is limited to 34 dB by the 3652A Calibration Kit, not by the instrument performance.